ROM Hack Is there a way to flash the Global ROM onto a Tencent Switch?

Carltrek

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It's possible, just backup your Switchs NAND and Prodinfo first. Then you're safe(r).
I think it would be safe if doing this on emunand ? If something went wrong just throw away that emunand and recreate one. Prodinfo is just a Nand user partition.

Will this also change the keys so they can play eshop games? This review said that they can't because of different keys but I wasn't sure if they're keys stored in the efuses or the firmware. https://forum.devchroma.nl/index.php/topic,216.0.html
The key is only different in games from Tencent-Nintendo Switch eShop. If you lose that key seems you will only lose the ability to run Tencent-Nintendo games. On the other hand, Tencent-Nintendo itself should got regular keys bundled since it could run regular nsp games.

factory reset your tencent switch, region will change to your changed version
You cannot factory reset the emunand. Doing the procedure you said on sysNand is waaaaay too dangerous. I guess the closest thing to factory reset on emunand is to install the same version firmware as the current one by ChoidujourNX .
 
Last edited by Carltrek,
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Carltrek

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Okay I have tried -- it doesn't work at least on emunand. Because you cannot factory reset the emunand. If you use the factory reset function in ChoidujourNX, you will be thrown back to first time setup, but somehow, the prodinfo will be reset.
 

pioneerpeter

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Is there any guide to edit mainland china swi
1 backup tencent switch prodinfo
2 edit prodinfo file 0x3510, change 04 to other region, 00=jp 01=us 02=eu
3 0x351e 633b is crc checksum, need change to correct value
4 restore prodinfo, if you not change crc checksum to correct value, restart will black screen in boot
5 use sx installer or goldleaf delete /system/save and savemeta
6 factory reset your tencent switch, region will change to your changed version

region value checksum
jp 00 66FF
us 01 663E
cn 04 633B
Could you provide a tutorial to me for region changing as i don't know about using hex editor?
 

xHR

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1 backup tencent switch prodinfo
2 edit prodinfo file 0x3510, change 04 to other region, 00=jp 01=us 02=eu
3 0x351e 633b is crc checksum, need change to correct value
4 restore prodinfo, if you not change crc checksum to correct value, restart will black screen in boot
5 use sx installer or goldleaf delete /system/save and savemeta
6 factory reset your tencent switch, region will change to your changed version

region value checksum
jp 00 66FF
us 01 663E
cn 04 633B
Great tutor!
So what CRC for EU?

UPD. US works fine if you need all languages
An important note - I could not format the console using Switch, the console was cut off when formatting. So I removed save and savemeta via mtp tinfoil and then installed the firmware via choi with console formatting
 
Last edited by xHR,

goconnect

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region value checksum
jp 00 66FF
us 01 663E
cn 04 633B
tw 06 ?????

what is the check sum code for Taiwan?

Thanks
 

Nohayday

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1 backup tencent switch prodinfo
2 edit prodinfo file 0x3510, change 04 to other region, 00=jp 01=us 02=eu
3 0x351e 633b is crc checksum, need change to correct value
4 restore prodinfo, if you not change crc checksum to correct value, restart will black screen in boot
5 use sx installer or goldleaf delete /system/save and savemeta
6 factory reset your tencent switch, region will change to your changed version

region value checksum
jp 00 66FF
us 01 663E
cn 04 633B

hi how can I edit that prodninfo file? With note text?
Do you have video to change the region? I really need it. Thanks
 

meovoz

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Great tutor!
So what CRC for EU?

UPD. US works fine if you need all languages
An important note - I could not format the console using Switch, the console was cut off when formatting. So I removed save and savemeta via mtp tinfoil and then installed the firmware via choi with console formatting
hi did u using switch v2 from tencent with sx core and running sxos right ?
 

meovoz

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Great tutor!
So what CRC for EU?

UPD. US works fine if you need all languages
An important note - I could not format the console using Switch, the console was cut off when formatting. So I removed save and savemeta via mtp tinfoil and then installed the firmware via choi with console formatting
and can u tell me what homebrew u used to backup and restore prodinfo ?
thx u very much
 

jrequejo

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Could someone please help a newbee here? After sx core I stalled and creating an emunand, where do we perform the changes? On the emunand, or directly on the sysnand? I would prefer to work on emunand, but someone posted there that this doesn't work? Could someone please write the steps in sequence,including which tools to use? Thanks a lot!
 

mvmiranda

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1 backup tencent switch prodinfo
2 edit prodinfo file 0x3510, change 04 to other region, 00=jp 01=us 02=eu
3 0x351e 633b is crc checksum, need change to correct value
4 restore prodinfo, if you not change crc checksum to correct value, restart will black screen in boot
5 use sx installer or goldleaf delete /system/save and savemeta
6 factory reset your tencent switch, region will change to your changed version

region value checksum
jp 00 66FF
us 01 663E
cn 04 633B
It works flawlessly!
Thank you very much!
 
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